unemployment insurance
(11) The term “unemployment insurance” means the unemployment compensation payable to an individual under any State law or Federal unemployment compensation law, including chapter 85 of title 5 and the Railroad Unemployment Insurance Act [ 45 U.S.C. 351 et seq.]. The terms “regular compensation”, “additional compensation”, and “extended compensation” have the same respective meanings that are given them in section 205(2), (3), and (4) of the Federal-State Extended Unemployment Compensation Act of 1970 ( 26 U.S.C. 3304 note).